Lubricator



(No Model.)

A- M. WAY.

LUBRIOATOR.

Patented Jan. 1 1, 1898,

WITNESSES 6P6 ATTORNEYS m5 norms PLHZR$ co. PHOYO-HYHQ. whmnmom u c.

ALBERT M. \VAY, OF PHILADELPHIA, PENNSYLVANIA.

LU BRICATOR.

SPECIFICATION forming part of Letters Patent No. 597,157, dated January 11, 1898.

Application filed August 27, 1897. Serial No- 649,779. (No model.)

To all whom, it 11m concern..-

Be it known thatI, ALBERT M. WAY, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Lubricators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Thisinvention has reference to a novel construction in a lubricator-cup, and has for its object to provide means for automatically controlling the supply of the lubricant.

The invention consists in the construction and arrangement of the several parts, which will be more fully hereinafter described and claimed.

In the accompanying drawings, forming a part of this specification, Figure l is a central vertical section of a lubricator constructed in accordance with this invention. Figs. 2 and 3 are central vertical sections of two modifications embodying this invention.

Referring now to said drawings, 1 indicates the base or stem of the cup, by means of which it is secured to the part to be lubricated, and it is provided with a chamber 2 at its upper end and with the cup 3, that is closed at its upper end. Situated within the cup and leading upwardly from the chamber 2 is an upright cylinder or tube 4, within which is situated a piston 5. The upper end portion of this cylinder 4; is provided with longitudinal slots 6 to receive the ends of a finger 7, that is secured to the piston 5, and which projects toward the center of the cup, where it is provided with a screw-threaded opening 8 to receive the valve stem or rod 13. The upper end of the cylinder at is closed by a cap 9, and between the cap and the upper end of the piston is a spring 10, that serves to normally keep the pistonat the lower end of its movement. Extending through the stem 1 is an opening 11, through which the lubricant passes to the part to be oiled, and the upper end. of this opening forms a valveseat 12.

Referring now specifically to Fig. 1, an upright rod 13 is provided at itslowerend with a valve 14, which is seated upon the valveseat 12,.while the upper end of this rod projects through the top end of the cup and is conveniently notched, so that it maybe turned. Near its lower end the rod 13 is screw-threaded, whereby it has a screw-threaded connection with the finger '7 to permit the adjustment of said rod or stem 13.

In operation the chamber 2 is filled with mercury or other sensitive fluid that expands and contracts materially under variations in temperature. The lubricant is placed within the cup 3, and the rod 13 is rotated and the position of the valve 14 adjusted so that the amount of oil passing into the passage 11 is sufficient to keep the bearing oiled under normal conditions. Should the bearing run dry and begin to heat, the mercury within the chamber 2 expands and raises the piston 5, which consequently raises the rod 13 and allows a greater supply of oil to pass into the opening 11. As the bearing cools ed the valve returns to its normal condition, as is obvious.

In the modification shown in Fig. 2 the invention is illustrated in connection with a feed-cup, the parts being the same, with the exception that above the chamber 2is a compartment 15, in the side of which the opening 16 is situated, while the wall of the opening or valve-seat in the top of compartment 15 is provided with a downwardly-projecting nozzle or spout 17, which enters said compartment.

In the modifications shown in Fig. 3 the parts are arranged to act in connection with the pressure-feedthat is to say, the oil-cup communicates by means of a pipe 18 with a suitable source supplying the lubricant under pressure, while the opening through the top of the oil-cup, through which the rod 13 passes, is provided with a stuffing-box 19. Owing to the connection of the chamber 3 with a pressure-feed, the device can be used in also ahorizontal or an inverted position.

Having thus described the invention, what is claimed as newis 1. A lubricator consisting of a cup, a stem with a chamber therein adapted to contain a thermostatic fluid, avalve for the dischargeopening of said cup, a tube in communication with said chamber and a piston located in said tube and connected with said valve.

2. A lubricator comprising a stem having a chamber, a cup, an opening through said the upper end of said cylinder, a spring be stem having an upper end if rmed as a valve tween said cap and said piston, a lubricatoi seat, a tube communicating with said chamcup mounted upon said stem, an opeuin her and provided with a piston, a thermothrough saidstemhavingitsinnerend forme 5 static fluid within said c a ber, afinger conas a valve-seat, and a rod having a valve a nected with said piston, and a rod connected its lower end and extending through the up with said piston having no end formed as a per end of the cup, said rod having a screw valve to enter said valve s t. threaded connection With said finger.

3. A luhricator comprising a stem having 5. A ltibricator consisting of a cup, a sten [o a chamber, a cup, an opening through said having discharge-openingv therein for sai stem having an upper end formed as avalvecup, an a chamber, a tube in said cup coinseat, a tube communicating with said chammunica ng with said i amber, a spring-con- 3 her and provided with a piston, a thermotrolled iston in said tube, and a valve in static fluid within said chamber, a finger 0011- said cu for said discharge opening, sail 1 5 nected with said piston, and a rod adjustably valve 1 ing connected with said piston an 1 connected with said piston having one end said c w ber containing a thermostat. formed as a valve to enter said valve-seat, In 'te imony whereof I have signed thi llcrril 4. A lubricator comprising a stem having specific .on in the presence of two subscrib a chamber filled with a thermostatic fluid, a 'ing ii see. 2 a tube communicating with said chamber and BERT M. XVAY.

having longitudinal slots at its upper end, a Witnesses:

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piston situated within said tube having a ANNA K. WAY, finger extending through said slot, a cap upon Gnonen W, BEAN. 

